Electric locomotive.



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AT TY A. P. BATGHELDER.. ELECTRIC LOGOMOTIVB. APPLICATION FILED APL?,1909.

lPatented Mar. 28, 1911.

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A. F. BATGHELDBR.' ELECTRIC LCOMOTIVE. APPLICATION FILED Amm, 1909.

mvENTnH Asfx F. EIATEH ELDER UNITEDv STATES PATENT OFFICE. y ASA F.BATCHELDEB, 0F SCHENECTA'DY, NEW YORK, ASSIGNCB. TO GENER'AL ELECTRIC iCOMPANY, A CQRPORATION'OF NEW YORK.

ELECTRIC LOCOMOTIVE.

My invention, relates to electric locomo'y tives, and particularly to acertain new type of locomotive possessing advantages hereinaft-er setfort i Y My invention consists broadly in an electriclocomotivecomprising a frame, a plurality ofdriving wheelsmountedtherein, a jack-shaft journaled in said frame beyond said drivingwheels and substantially in the same plane as the axles of the latter, amotor vmounted on said frame over aid driving wheels andv so arrangedethat he plane through the motor shaft andthe jack-shaft will meet at anangle the` plane through the jack-shaft and the wheel axles, and crankand 'connecting l,rod connections between said driving wheels and saidjack-shaft and between the latter and the rotating meme ber of themotor. l

In the accompanying drawings -certain preferred embodiments of myinvention are illustrated, these being hereinafter fully described.

In the drawings, Figures l, 2 and 3 are diagrams serving to illustratethree arrangements of driving apparatus for a locomotive, thesediagramsl being hereinafter referred to in connectlon with anexplanation of one of the advantages of the particular arrangement ofapparatus which I 'have shown; Fig; 4 isa side elevation, partly insection, of a locomdtive having my invention incorporated therein,certain parts of 'A the locomotive beingv omitte d,for 'the sa ke ofclearness.; Fig. 5 is a plan view, serving principally to show ltherelatio of .the motor cranks on opposite sides o the locomotive; Fig. 6is an elevation, partly in section, of Aa portion of the movable memberof ay motor, illustrating particularly thespring drive; Fig. 7 isasection on the line 7 7 of Fig. `6 looking in tha-direction ofv thearrows; Fig. A8 is an enlarged view of a portion of the springldrive'shown in Fig. 7

Figi, 9 is a View on the line 9 -9 of Fig. 8 loo ing inthe direction ofthe arrows,l and Specication of Letters Patent. Pai-,ntd :Man 28 1911,Application led April 7, 1909.

Serial No. 488,517.

Fig. l0 is a view similar to Fig. 7, showing -a modified form ofsprinpdrive. i

Like parts are referred 'to throughout the several views by the samereference characters.

Before proceeding to describe my inven ltion and the particularembodiment of it which I have illustrated, I will point out some oftheadvantages which it 'offers overy the types of locomotives heretoforeused.

When the driving lmotors of anyclectric locomotive are located adjacentthe driving axles ,the size of the motors is limited by tion of themotors adjacent the wheel axles .and beneath the body of the locomotivehas `also presented certain disadvantages, owing to the fact that whenso placedthe motors.

are not readily accessible for the purpose of adjusting and repairingthe brushes,and for other reasons in the nature of Vfacility in generalrepair of the motors. This location of the motors also makes itnecessary that they be completely nclosed in order to elfectively shieldthem from dirt and moisture'. tion of the motors adjacentthe wheel axlesresults in making the center of gravity of the locomotive so low thatthe lateral movement ofthe latter during operation, exerts upon therails hammer blows which are ,unrelieved, to a large extent, by thelocomotive sprlngs In the type of locomotive hercnafter described I haveremoved the causes of many of the objections above noted.

My improved form of locomotive is characterized by the fact that themotors are loca-ted'above the driving wheels upon the 'body frame of thelocomotive and within the cab and areV connected to 'the driving wheelsYhy suitable gearing, using this term to the fact.

It has been claimed also that loca- 50 around this axis.

ment with reference to the frame of the locomotive, and that the motorsbe rigdlv supported on said frame, the distance bdtween the motor shaftsand the axles ofthe 5 driving wheels is not'constant. I therefore employjack-shafts between the motors and the driving wheels, saidjack-shafts'being journaled in bearings fixed in the frame, the motorsbeing eared to said jack-shafts and said jack-sha ts in turn geared tothe driving wheels. By locating the jack-shafts in substantially thesame plane as the driving wheel axles, the slight vertical movement` ofthe wheel axles in t-he frame results only m avery small variation inthe distance between theV jack-shafts and the wheel axles,

which variation can easily be allowed for by a slight lost motion in thegearing between the jack-shafts and the axles. The form of gearing whichI find most suitable for transmitting .the power of the motors to thedriving wheels, is cranks and connecting rods, the cranks on the wheels,jackshafts and rotating members of the motorsl 4bein located in eachcase approximately at right angles on opposite sides of the locomotive.A

It is necessary that enough driving wheels be used to-prevent thepressure between any driving. wheel and the track from exceedin acertain amount and in the larger sizes o locomotives a considerablenumber of driving wheels is, therefore, necessary. There is, however, alimit to the length of rigid wheel base which a locomotive can have andoperate satisfactorily and it is generally de.

sirable to locate the dving wheels as near together as possible. Forthis reason, among others, I locate the jack-shafts not between thedriving wheels but in front of or behindthem; thus, when two jack-shaftsare employed, placing one ahead of and the other behind the drivingwheels. It is desirable also that the motors be near the-center of thelocomotive, in order to concentrate as much of the weight of thelocomo-V the location of the control apparatus and the Voperatorscompartments.

-In addition to the foregoing reasons for locating the motors near themiddlev of the locomotive and above the driving wheels and scape?spection of Fi s. 1, 2 and 3, which show diagrammatical y three Iarrangements of motors, jack-shafts and driving wheels. In

all these ures M M indicate the motors, J and J tie jack-shafts andW W`W the wheels. These motors, jack-shafts and wheels are supposed to beconnected by crank and connectinV rod connections the cranks on one sideo lthe locomotive being set at 90 with the corresponding lcranks on theother side. yThe connecting rods on what I shall call the front side areshown in full lines, while'those on the f back side are shown ,in dottedlines.

In Fig. 1 the' axes of the motors, jackshafts and wheels are all in thesame plane and it is evident that at all times the motors will furnishpower on either side for the wheels on that side, and that theoreticallyno power will ever be transmitted from one 4side of the locomotiveto theother through the jack-shafts.

V,In Fig. 2 the motors are located directly above the jack-shafts. It isevident that, in the position shown, since the connecting rods betweenthe motors andthe jack-shafts on the front side are on dead center,'the

power of the motors will all be transmitted from the motor to thejack-shafts through the cranks and connecting rods on the back side ofthe locomotive; and that, since the connecting rods4 between thejack-shafts and wheels are on the back side of the locomotive oir deadcenter, the wheels will be driven through the cranks and connecting rodsbetween the jack-shafts and the wheels on the front side of thelocomotive. With this arrangement, therefore, at the time when the partsare in the position shown'in Fig. 2, all the power furnished by themotors will be transmitted on the back side ofthe locomo'- tive to thejack-shafts, will pass through the jack-shafts to the front side of thelocomotive and will be transmitted to the wheels on that side. It would,therefore, be necessary in the arrangement of Fig. 2 to make thejack-shafts capableo transmitting the full power furnished by themotors.

In the arrangement of Fig. 3 the motors are located -with the parts inthe position shown, (the connecting rods between thc jacklshafts and thewheels on the back side of the locomotive are on dead center so that thedriving of the wheels is at that instant being all done from the frontside of the locomotive. It 'is evident, however, that the pc vcrfurnished by the motorsl at that stant is being transmittedv to eachjack-shaft partly on one side and partly on -the other 60 thejack-shafts one in front of and the other Y behind the driving wheels, Iregard it as indsirable to arrange the parts in this way rin order" todecreaseasgmuch as possible the.

'an le at which 'the lanes through the motor 65 shafts and the4 ja-shafts meet the plane iside, of the locomotive, and that only a portionof it, say, one-half, will be transmitted throughthe jack-shafts fromthe-back s ide l to l'the front side. `Withthe arrangement` of Fig. 3,therefore, it is evident that at nol 'as lfar as transmission'of thepower from the motors through the jack-shafts'to the wheels isconcerned. The necessity,how

ever, in that arrangement of locating the motors nearthe end'sof thelocomotive, renders the arrangement undeslrable; with the motorssoarranged, most of the objections noted above which now existfromlocating of the motors adjacent the wheel axles would be present,and in addition the vobjection of locating such a considerable portionvof the totalweight of the locomotive near the ends thereof. --Thearrangement of Fig. 2 would be-less objectionable `than that of Fig. 1,but, as explained above, would require the jack-shafts to be made largeenoughto transmit at certain times the" total power delivered by themotors from one side of the locomotiv-e to the other; in thisarrangement, also, the weight ofthe motors would be objectionably nearthe ends of the locomotive.

In the arrangement of Fig. 3, however, the

total power of lthe motors is'never transmitted Afrom-oneside of thelocomotive to the otherthrough the'jack-shafts and the Weight of themotors is concentrated 'as near the center of the locomotive aspossible.

l The arrangement of Fig. 3 is, therefore, the

most desirable ofthe three and presents' the many advantageshereinbefore referred to.

O Wingto .the fact that the torque exerted by single phase motors is notsteady' but is constantly varying from zero to the maximum, it hasbeen-found desirable, where such motors are used for railway work, toprovide a springdrive between the'motors and wheels'whereby this varyingtorque of reduced to a more or less constant torque for application tothe driving Wheels. 'These spring drives have heretoforebeen b uilt intothe driving wheels: vIn

the locomotive illustrated in this application I have shown springdrives located not in the driving wheels but instead in the rotatingmember of the motors and have pro- 4 vided a particular form of springdrive which possesses certain advantages hereinafterpointed out. Iconsider that the spring drive in vits particular location withreference to the other parts of my locomotive as an important feature ofmy invention, and I regard the particular type of spring drive, which Ihave illustrated, as possessing c'e'rtainadvantages which do not limitit to this particular u.

` the locomotives.

The advantages which my arrangement of driving apparatus offers over thearrangeing in the total, cost 'of themotors can be made. In myarr-agement the center ofgravity of the locomotive is highl enough toallow the springs to Irelieve the .lateral forces exerted upon the railsby nosing l of The motors are accessible for the purposes of adjustmentandrepair and theirl ventilation by forced draft' is facilitated, whileat the same time they are effectively shielded from dirt'arid moisture.

Referring to F igs.` 4 and 5, the body frame of the locomotive isindicated at 11, in which frame are mounted driving wheels 12, 13 and14. The journal boxes of the driving wheels 12, 1,3 and 14 are arrangedin the usual way for sliding movement in a vertical direction in theframe 11, suitable springs 15 being arranged tol yieldingly support theframe upon the journal boxes in any well known manner. Two motors 17 and18 are rigidly mountedy upon the frame 11 in any suitable manner" and inthe arrangement shown are located directly over the driving wheels 12and 141-. Each of the shafts 20 and 21 is mounted vin bearings fixed inthe 4frame 11 between one of the driving axles `and the adjacent end ofthe' frame. These jack' shafts are in substantially'the same horizontalplane as the driving axles` and have their axes parallel with that ofthe rotating member ofeach'I motor is valso at each" end provided withbalancedA cranks 24 and 25 set at 90o 'from oneanother. The

driving wheels 12, 13" and 14 are provided with 'crank-pins 25, 27 and28at=each end, those on each pair of driving Wheels being set at 90 fromone anotherand the i'vheels being counterweighted i-n a well-knowninanner. All t-he cranks 22 to v28 inclusive" are located at Vthesameradius. On the side of the loc'omotiveshown, cranks 22 "and 24tareconnected by an inclined'connecting rodBO;

.cranks 22 and 26 by a` substantially horiconnecting "rod" 31;

zontal coupling or cranks 26 and 27 by a'coupling or connecting rod32,'this rod being` extended beyond the crank 27 and carryinga pin 33bywhich one vend ofthe coupling or connecting rod 34 is pivotally'connected to the rod 32, the other-end' ofthe 'rod 34 beinglconnectedto,the crank' 28; cranks 28 and 2 3`a'ie 'connected by a coupling' 'orconnecting rod" 35 land lil cranks 23 and 25 by' an inclined connectingrod 36. It is to be noted that the inclination of each .of-theconnecting rods30 and 36 is at an angle to the horizontal, that is, theplane through each motor shaft and the jack-shaft nearest thereto meetsat an angle Lthe lane through the wheel axles and jacksha s." Ipreferabl make this `angle approximately 45. ith this arrangement, whichis duplicated on the other side of the locomotive, it is clear that themotors will drive the wheels `through. the cranks, con-l necting rodsand jack-shafts, and that, since the cranks on one side of thelocomotive are al1 locatedat right angles to the corresponding cranks ont e other side, the whole system can never at any time be on deadcenter.

A two axle leading truck 40 is. shown at one end of the locomotive, anda' single axle leading trucl. 41 at the other e'd thereof.A A

portion of the cab is shown in outline at Between the rotating membersof the motors 17 and 18 and their cranks are spring drives which arepartially illustrated at 44` in Figs. 4 and 5 and are shown in detail inFigs. 6,7, 8 and 9. Referring to the -latter figures, a portion of themain frame of the motor is indicated at 45 indotted lines, and

. the brasses of the journals for the rotating member of the'motor-at46. A portion of the rotating member proper is indicated at 47 as in theform of a hub into which are insertedand held by bolts sleeves 49 lwhichare journaled in the brasses 46, as shown in Fig. 6. Through the sleeves49 passes a shaft 52 to either end of which is keyed a sleeve 53, eachof which is fitted for rotation within one of the shells 49. Preferablymade integral with thesleeve53` is la disk 54 which carries the crankpinfor that side Vof the motor. f This disk 54 is smooth onits side awayfrom the, motor and the other side carries a circular row of lugs 55arranged in pairs as shown. The ou-ter ends of the shells 49 areenlarged into plates or'spiders 561n the form best shown in Fig. 7.

The driving connections between the shells 49 and the crank disks v 54conslst of a plu-4 rality of leaf springs 57 each of Winch consists of abundlev of thin strips of steel bound together by rings 58 held,as' bestshown 1n Figs. 8 and 9, between clamping members y 59 bolted to the endsof the legs of the spider 56 by bolts 60. In order tb 'prevent thesprings from moving laterally out of'the grip of the clamping members59, therings 58, which bind the leaves of a. spring together, areprovided with lugs 61, as best shown in Fig. 9, which engage with'slotsin the clamping members 59 vasrvvill be understood from Figs. 8 and 9.'With this arrangement it is seen that ,theV sprin 57 are .securedto the.spider 56 and exten ing outwardly engage with the lugs 55 on the in sideof crank disk -54 and serve as ayielding of this kind thepulsatingtorquefurnished 'by a single-phase alternating current motor 1s changed into acomparatively uniform torque delivered at the cranks of the motors. 1 I

In Fig. 10 a modified form of driving connection is shownwhich issimilar to that of Figs. 6 to '9. In the construction of Fig. 10 thespider 56 is of the form shown, and the springs 57 are held between thelegs of the spider directly and not by means of re- 'movable clampingmembers.l The disk 54 is provided with lu s 55'.- ABetween these lugs 55the outeren sof the springs 57 are inserted and a ring 62 secured tothelugsv 55' by screws .63 and. a plate 64 secured to` the spider 56 by'screws 65 hold the springs 57 in their proper 'position in coperationwith the spider 56, andthe lugs 55. In the de vice of Fig.. 10,therefore, as in that of Figs. 6 to 9 the leaf springs serve as -ayieldingv connection between'the rotating member of the motor and thecrank disks and ins.

iVhile I have shown certain orms in which lmy invention may be embodiedI do not wish to be .understood as limiting my- 1GO selfto these exceptas'called for by the following claims. i i i What IA laim as new anddesire to secure I by Letters Patent of the UnitedStates,I is,

1. In an electric locomotive, a frame, a plurality of driving Wheelsmounted. therein, a jack=shaft journaled in said frame beyond saiddriving wheelsand .substantially in the same plane' as the axles of thelatter, amotor mounted on saidframe `over said -110 driving Wheels andso arranged that the "plane through the motor shaft and the jack- 'shaftwill meet vat an angle'the plane through the jack-shaft and the wheelaxles, and crank and connecting rod connections between's'aiddrivingwheels and Vsaid jack-- shaft and` between the latter and the `rotatingmemberof the motor.V

2. In an electriclocomotive, a frame, a. plurality of driving wheelsmounted there' 120 in, two jack shafts journaled in said frame, oneahead of and the other behind said driving'wheels .and substantially inthe same 'plane as the axles of the 'latter,.two motors mounted bn saidframe over said driving wheels and so arranged that the planes througheach motor shaft and the jack shaftl nearest thereto will meet at. anangle, andcrank and connecting ro'd connectionsv 'between said drivingwheels and 'said jack `111C shafts and between each of the latter andthe rot-ating member of the nearest motor.

3. In an electric locomotive, a frame, a plurality of pairs of drivingwheels journaled therein, two shafts journaled in said frame, one aheadof and t-he other behind said driving wheels and substantially din thesame plane as the axles of the latter, two motors mounted onvsaid frame`over said driving wheels and so arranged that the planes through eachmotor shaft and the jack shaft nearest thereto will meet at an. angle,and crank and connecting rody con? nections between said driving wheelsand said jack shafts and between each of the latter and the rotatingmember of the nearest motor, the cranks on the wheels, jack shafts androtating members of said motors being in each case approximately atright angles on opposite sides of the locomotive.

4. In an electi'ic locomotive, a frame, a plurality of pairs of drivingwheels, journal boxes for said pairs of wheels mounted in said frame forsliding vertical movementwith reference thereto, spring connectionsbetween said frame and' said journal 'boxes by which the former issupported upon the latter, two jack shafts journaled `in said frame oneahead of and the otherlbehind said driving wheels and substantially inthe'v saine plane as the axles of the latter, two motors mounted on saidframe over said driving wheels and so arranged that the planes througheach motor shaft and the jack shaft nearest thereto willbe inclined tothe. horizontal, and crank and connecting rod connections between saiddriving wheels and said jack shafts and between each of the latter andtheA rotating member of the 'nearest motor, the ,cranks on-the wheels,jack shafts and rotating members of the motors being in each caseapproximately at rightI angles on opposite sides of the locomotive.r

5. In an electric locomotive, a frame, a plurality of.,I driying wheelsmounted 'therein, two jack shafts journaled in said frame, one ahead ofand the other behind said driving wheels" and 7substantially in thesameA plane as the axles of the latter, two motors mounted on lsaidframe over said driving 'wheels and so arranged that the planes througheach motor shaft and the jack shaft nearest thereto willbe atapproximately 45 to the horizontal, and crank and connecting rodconnections between said driving wheels and said jack'.A4 shafts andbetween each of the 'latter and the rotating member of the nearestmotor. l

6. In an electric locomotive, a frame, a plurality of driving wheelsmounted therein, two jack shafts journaled in said frame, one aheadv ofand the other behind said drivwheels and substantially in the same e asthe axles of the latter, twe motors monat-ed on' said frame over saiddriving wheels approximately midway between said jack shafts and soarranged that the planes through eac-h motor shaft and the .j ack shaftnearest thereto will be at approximately 450 to the plane through thewheel axles and jack-shafts, and crank and connecting rod connectionsbetween said driving wheels and said jack shafts and between each of thelatter and the rotating member of the nearest motor, the cranks on thewheels, jack shafts and rotating members of said motors. being in eachcase at approximately right angles on opposite sides of the locomotive.

7. In' an electric locomotive, av frame, a ilurality of driving wheelsmount-ed therein, two jack shafts journaled in said frame,

est thereto will be inclined to the horizontal,

crank and connecting frodconnections between said driving wheels andsaid pickshafts, and crank and connecting rod spring driving connectionsbetween each ack-shaft and the rotating member of the nearest motor.

8. In a locomotive, a frame, aplurality of driving wheels mountedtherein, two jackshafts journaled in said frame one ahead of and' theother behind said driving wheels and substantially in the saine plane asthe axles of the lat-ter, two. Vmotors mounted on' 'said frame over said`driving' wheels and arranged so that the planes through each motor andthe jack-shaft nearestthereto will be inclined to the horizont-al,cra-nk and connecting rod connections between said driving.wheels andsaid ack-shafts, cranks driven by each motor, spring driving connectionsbetween each motor and its cranks, and connecting rods connecting thecranks 'of each motor with the nearer jack-shaft.

9. In an electric locomotive, the combinae tion of a supporting framecomprising two side frame members, a plurality of pairs o f drivingwheels fixed upon axles journaled in said frame with the capacity ofrelative vertical movement, springs through which said frame issupported on said axles, an electric motor supported on said frame, ajack shaft journaled' in substantially the same horizontal plane' as thedriving yfaxles, and having its axis parallel with that y"of the motor,but located in a different vertical plane therefrom, inclined connectingrods coupled to crank pins on the motor shaft and `on the jack shaft,respectively, and sulistantially horizontal coupling rods connectingcrank pins on the jack shaft with crank pins on the driving wheels.

l0r In an electric locomotive, thecoinb1nation of a support-ing framecomprising two side frame rflbmbers, driving wheels fixed upon one of aplurality of axles 'ourneled in said frame, springs through w ich saidframe is su ported on said axles, e jack shaftjourna ed between one ofthe driving axles 'and the' adjacent end of the frame, an electric motorsupported on the side frame members, with its axis in a vertical planefarther from said end of the frame than that of the jack shaft,connecting rods coul pled to crunk ins on the motor shaft und on thejack sha. t, respectively, and couplin rods connecting crank pins on thejack sha t with crank pins on the driving Wheels.

In witness whereof, l have hereunto set l5 my hand this 6th dey of April1909.

ASA F. BATHELDER Witnesses:

BENJAMIN B. HULL, HELEN ORFORD.

Ooplol of this patent maj be obtained for ve cents each, by ,addressingthe "Commissioner of ltents,

Washington, D. C.

